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spruce budworm

noun

Definition of spruce budworm

  1. :  a tortricid moth (Choristoneura fumiferana) whose larva feeds on evergreen trees (as spruce and balsam fir) in the northern United States and Canada; also :  a related moth (C. occidentalis) of the northwestern United States and adjacent Canada



1884

First Known Use of spruce budworm

1884


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to proceed clumsily or ineffectually

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